System memory and storage capacity of RS4017xs+ can be further extended. Up to 64GB of DDR4 ECC UDIMM can be installed to support multiple virtualization instances, and with two Synology RX1217/RX1217RP2 expansion units connected, a combined total of 40 drive bays can be freely arranged for storage management.

Rock-Solid Data Protection

The Snapshot Replication application provides schedulable, near-instantaneous data protection. It replicates 65,000 system-wide backup copies to offsite servers and local volumes, bringing near-instantaneous data protection and ensuring data in shared folders or virtual machines in iSCSI LUNs remain available in the event of a disaster.

Windows ACL support provides fine-grained access control and efficient privilege settings, allowing RS18017xs+ to fit seamlessly into current infrastructure.

MailPlus allows your business to set up a secure, reliable, and private mail server while giving your employees a modern mail client for receiving and sending messages.

Powerful collaboration suite that includes Synology Office, Calendar and Chat for secure and high-performance private communications and user-friendly content organization.

Reliability, Availability & Disaster Recovery

System reliability is of paramount importance to businesses which depend upon their commercial servers every day. RS4017xs+ responds to these concerns with wide-ranging availability and redundancy features:

Synology High Availability ensures a seamless transition between clustered servers in the event of server failure with minimal impact on applications.

Redundant power supplies, system fans and network ports with failover support ensure maximum continuous service uptime.

High-reliability system design, including fan-less CPU heatsink and passive cooling technology, prevents single points of failure.

DDR4 ECC RDIMM reduces power consumption and has error detection and correction capabilities during data transmission.

"Compatible drive type" indicates the drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.

The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit.

Expansion of the internal volume is only supported if the combined single volume size does not exceed the maximum limit of 108TB or 200TB if upgraded to 32GB RAM or more.

External Ports

RJ-45 1GbE LAN Port

4 (with Link Aggregation / Failover support)

RJ-45 10GbE LAN Port

2 (with Link Aggregation / Failover support)

USB 3.0 Port

2

Expansion Port

2

PCIe

PCIe Expansion

2 x Gen3 x8 slot (x8 link)

Add-in-card support

PCIe Network Interface Card

File System

Internal Drives

Btrfs

EXT4

External Drives

Btrfs

EXT4

EXT3

FAT

NTFS

HFS+

exFAT*

Notes

exFAT Access is purchased separately in Package Center.

Appearance

Size (Height X Width X Depth)

132.3 mm x 482 mm x 656.5 mm

Weight

17.4 kg

Others

System Fan

80 mm x 80 mm x 3 pcs

Fan Speed Mode

Full-Speed Mode

Cool Mode

Quiet Mode

Easy Replacement System Fan

Power Recovery

Noise Level

44.7 dB(A)

Scheduled Power On/Off

Wake on LAN/WAN

Power Supply Unit / Adapter

2 x 800W

AC Input Power Voltage

100V to 240V AC

Power Frequency

50/60 Hz, Single Phase

Power Consumption*

136.4 W (Access)
69.2 W (HDD Hibernation)

British Thermal Unit

465.7 BTU/hr (Access)
236.3 BTU/hr (HDD Hibernation)

Redundant Power Supply (for xs+ and RP model)

Environment Temperature

Operating Temperature

5°C to 35°C (40°F to 95°F)

Storage Temperature

-20°C to 60°C (-5°F to 140°F)

Relative Humidity

5% to 95% RH

Other

Certification

FCC Class A

CE Class A

BSMI Class A

Warranty

5 Years

Notes

Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).

A messaging service that runs locally, ensuring the safety of sensitive corporate information stored on company's premises and providing users a messaging experience equivalent to that of using a public cloud. Built to work with Office and Calendar seamlessly.

*Model specifications are subject to change without notice. Please refer to www.synology.com for the latest information.1 Performance figures may vary depending on environment, usage and configuration.2 RS4017xs+ supports up to 2 Synology Expansion Unit RX1217/RX1217RP, sold separately.3 exFAT Access is purchased separately in Package Center

Performance:

XS(+) Series

Synology strives to enhance the performance of our NAS with every software update, even long after a product is launched. For enterprises and users that demand uncompromising performance from their servers, check the figures below to find the most suitable choice.

Performance figures are achieved in the Synology lab by using very powerful client computers with optimized network settings, and could vary in different environments. Regular office desktop or notebook computers may not be able to reproduce these figures.